Develop a library for reading the NIS code with PKCS#11

Each card has an unique number (NIS) which can be read easily, without the need for the more complex middleware and also without entering the card PIN. It would be very useful to provide a minimal and portable (?) SDK for reading such code using PKCS#11. The SDK could be easily embedded in applications and devices.

The NIS code can be mapped to the person's Codice Fiscale just by querying a web service operated by the Government (not available yet). Such feature allows third parties to use CIE cards for access turnstiles (offices, gyms, etc.) because users can be mapped to a local database using the Codice Fiscale.

Example code for this task is available: https://github.com/italia/cie-middleware/tree/master/EsempioPKCS11
We basically need to turn it into a library, in both C++ and C#. The C++ version should also target MacOS X and Linux, since they provide PKCS#11. During development it's not required to make a single multi-platform library; distinct implementations can be developed for convenience.